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You searched for: mediatype:texts AND collection:penn_state_univ AND subject:"Insects"
[texts]Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression - Sempers, Frank W
Includes index
Keywords: Beneficial insects
Downloads: 312
[texts]The Practical Entomologist, v.1 - Entomological Society of Philadelphia
Title from caption
Keywords: Insects, Injurious and beneficial; Insects
Downloads: 259
[texts]Leaflet - Pennsylvania. Dept. of Forests and Waters
Each no. has also a distinctive title
Keywords: Trees; Forest insects; Pests
Downloads: 108
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